Widely Used --- Suitable pipe sizes are 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 5/8". Suitable for copper and aluminum, reaming and flaring brass and low carbon steel pipes. Convenient and Practical --- The pipe flaring tool set is used for reaming copper, aluminum and other pipes. Provide you a more relaxed and efficient working experience, convenient and practical tools. Easy to Use --- The precise thread feed pipe and long handle of the expander ensure easy operation. The expansion tools have different specifications to meet your different needs. Preferred Material --- The flaring tool set is made of high-strength materials to prevent the pipe from slipping during the flaring process. Product Description Specification : Item Type: Flaring Tool Set Material: Chrome Model: CT-278 Specifications: Bore Specifications: 1/8 inch, 3/16 inch, 1/4 inch, 5/16 inch, 3/8 inch, 7/16 inch, 1/2 inch, 5/8 inch, 3/4 inch Expansion Tube Specifications: 3/16 inch, 1/4 inch, 5/16 inch, 3/8 inch, 1/2